Test and Repair station Concord, Contra Costa County
Hj Smog
2111 Fremont Street D, Concord, CA 94520
Hj Smog is a licensed test and repair smog check station at 2111 Fremont Street D in Concord and is STAR certified.
What this station can do
This is a test and repair station. It can test your car and also fix emissions problems if it fails, then retest it.
Because it is STAR certified, it can test cars the DMV directed to a STAR station. What STAR means.
Hours
| Monday | 8 AM to 6 PM |
|---|---|
| Tuesday | 8 AM to 6 PM |
| Wednesday | 8 AM to 6 PM |
| Thursday | 8 AM to 6 PM |
| Friday | 8 AM to 6 PM |
| Saturday | 10 AM to 2 PM |
| Sunday | 10 AM to 2 PM |
License check
You can look up this station's license on the state's own site. Search the number below at search.dca.ca.gov. A smog check only counts if the station is licensed on the day of your test.
- Smog station license RC 314814
- Auto repair registration ARD 314814
- License expires 2026-12-31
Own this station? Fix your hours, phone or services.
Before you go
- Bring your DMV renewal notice if you have one, and the car's registration.
- Drive at least 20 minutes first so the engine is warm.
- If the check engine light is on, you will fail. Here is why.
- Prices are set by each station. The statewide average and what drives it are in our price guide.